Build the odds
Want to Read supplies the draw; past reads provide a fallback when that shelf is empty.
Stop choosing. Start reading.
Draw from Want to Read. If it is empty, get a match based on past reads that excludes every series you have already tried. Your library changes only after you confirm.
Opening your Want to Read shelf…
Spin once—or not
Reroll freely, or switch on no-rerolls mode before the first draw.
Confirm the choice
The result never moves to Reading until you explicitly approve the shelf change.